Interface for a single handle valve cartridge



FIG. 1 is an upper perspective view of the interface for a single handle valve cartridge;

FIG. 2 is a lower perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines shown in the drawings represent portions of the single handle valve cartridge that form no part of the claimed design. 

The ornamental design for the interface for a single handle valve cartridge, as shown and described. 